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calceaza in doua moduri 140:2+600:2+220:2=

Răspuns :

(140+600+220):2=960:2=480
70+300+110+480

140÷2+600÷2+220÷2=70+300+110=480
140÷2+600÷2+220÷2=(140+600+220)÷2=960÷2=480